#ifndef USART_H_
#define USART_H_
#include "stm32f10x.h"


void usart2_init(void);

void USART2_send_byte(u8 data);
void USART2_send_string(u8 *str,u8 len);
u16 USART2_Receive_Byte(void);
void Usart02_SendBuff(u8 len,u8*buf);

#endif
